Pump



April 9, 1935. GIN-[ORE ETAL PUMP 2 Sheets-Sheet 1 Filed Oct. 3, 1932erg,

Patented Apr. 9, 1935 1,997,069

UNITED STATES PATENT OFFICE PUMP Glenn More and Gunnard A. Oberg,Jamestown, N. Y., assignors to Blackstone Manufacturing Company,Jamestown, N. Y., a corporation of New York Application October 3, 1932,Serial No. 635,988 2 Claims. (01. 308-134) This invention relates toimprovements in indicates a motor for driving the gearing of the pumpsand consists of the matters hereinafter dewashing machine. Said motor ismounted on a scribed and more particularly pointed out in the platform Isupported on spring shock-absorbing appended claims. bars l5,l5'attached to a horizontal bar rigidly 5 The object of the invention isto produce a supported by the legs of the tub. I! indicates pump whichis of simple and economical conthe improved pump which is supported bythe structionand isprovided with a novel and efficient gear casing ofthe washing machine, as shown in packing which will prevent leakage.Figures 2 and 3, wherein I'Ia indicates the bot- Another object of theinvention is to provide a tom section of said gear casing.

pump in which adjustment of the stuffing box is l8 indicates the pumpcasing. This comprises 10 automatically taken care of at all times sothat a fiat circular shell I!) having an integral end there is nopossibility of the pump becoming wall on one side indicated at 20 andbeing open locked, as may occur where the stuffing box reon the oppositeside. The open side of said shell quires mechanical adjustment. isclosed by a flat plate 2| which is made integral These and other objectsand advantages of the with a centrally disposed bearing sleeve or hous-15 invention will appear more clearly as we proceed ing 22. 23 indicatesa tubular inlet pipe made with our specification. integral with the wallof the casing and open- In illustrating the invention, we have shown glaterally into the Shell 24 i d a a the improved pump as applied to awashing matubular discharge pipe likewise integral with the 20 chine fordraining water from the tub at the comshell I9 and opening radiallythereinto. The 20 pletion of a washing operation or when changing Plate2| and the Shell are Secured together the water therein. It will beobvious, however, by Suitable belts e e being a suitable asthat this ismerely one example of the use of the ket disposed betw e the shell a d aplate to pump, which may be applied for draining water make awater--tightv joint.

25 from other containers. The pu is of the familial retary C t fuga 25In the drawings:--- type. 25 indicates the rotor of the pump, the

Figure 1 is a view representing a, washing asame consisting of a flatdisc 26 having a centrally chine in side elevation with our improvedpump disposed hub 21 extending laterally t e efrom applied to drain thewater from the bottom of the a d Cu va 28 also extending laterally tuband located in a position adjacent the motor therefrom and connected tosaid hub. 30 located below the bottom of the tub, 29 indicates a shaftfor the rotor. Said shaft Figure 2 is a front elevation of the pump withhas bearing in the tubular housing 22 and has a the bottom section ofthe washing machine gearprojection 30 of reduced diameter which extendsing casing, by means of which casing section the beyond the plate 2|,where it is fixed within the pump is supported. In this view the pump ishub 21 of the rotor. The housing 22 has aradial 35 shown with its drivepulley ..in operative engageinwardly projectingfiange 3| in the plane ofthe ment with the motor belt. disc 2|, which flange loosely engages theshaft Figure 3 is a view similar to that of Figure 2 29. The shaft 29projects beyond the housing with the pump shown in that position whichit 00- 22 (in a direction away from the pump casing).

40 cupies when its drive pulley is in inoperative relaand has therefixed t t a pulley 32,

1310!! with respect to the motel belie 33 indicates a sleeve whichpresents a combimgure 4 is a View representing an enlarged nationstufiing gland and bearing within the scale side elevation of thepumphousing. Said sleeve is spaced laterally from the Figure 5 is a viewrepresenting a section of the pump in a vertical plane through thelongitudinal i s: mama? t g ifi fif r the 1 central axis of the pumpshaft on a scale like that 9 e t momma e o e D By Pac 0! Figure 4. mg 351S interposed about the shaft 29 between In Figure 6 are shownperspective views the flange 3| of the housing 22 and the nearerspectively, of a combination stufling glan and end of the combinationstuffing gland and bearbearing and abearing sleeve, which are containedPreferably the Parts 0f the 50 inthe housing for the drive shaft of thepum flange 3| and of the combination bearing and Referring now to thatembodiment of the stufling gland 33 are inclined away from each v ntioillustrated in the drawmgs;-|o indiother so that the packing 35 islonger adjacent catesawashina machlneofanyfamiliar constructhe shaft 29than it is adjacent the housing 22. tion. including a tub ll standing onlegs l2; It A coiled spring 36 is interposed about the shaft shoulders33a and to any tendency to -sult that the coiled spring 23 between thecombination bearing and stufilng gland 33 and the bearing sleeve 34.

The bearing sleeve 34 is fixed by a set screw 31 both against rotativeand longitudinal movement in the housing 22. The combination stuffinggland and bearing 33 is capable of longitudinal movement in the housing22, with the re- 36 holds it against the packing 35. The opposed ends ofthe combination stufilng gland and bearing 33 and of the bearing sleeve34 are notched to provide radial 34a, respectively, as shown in Figure6. Said shoulders are opposed circumferentially and are engaged by theends of the coiled spring 36. The spring 36 is coiled in a directionopposite to that in which the shaft is designed to be driven. a

Any rotation of'the combination stufiing gland and bearing sleeve 33with the shaft is resisted by the coiled spring, which is locked againstrotation as a whole by the engagement of its righthand end against theshoulder 34a of the fixed bearing sleeve 34. In addition, such rotationwould tend to uncoil the spring and thusexpand it radially so as to lockthe spring in the housing. Thus the strain on the fixed bearing sleeve34 due rotation of the combination stuffing gland and bearing 33 isreduced to a minimum.

In the bottom of the housing is set a pressure grease or oil cup 38 bymeans of which lubricant may be forced into the housing to continuouslyrenew the supply therein. By the-1ocation of the grease or oil cup 33intermediate the gland 33 and sleeve 34, the bearing is lubricated fromthe inside, and water from the pump is thus prevented from entering inghousing.

The pump casing is provided with laterally spaced, upwardly projectingapertured ears 39 by which the pump as a whole is hinged to lugs 39adepending from the bottom of the gear casing section pump is so locatedthat the pulley 32 is in the plane of the belt I 3a of the motor. InFigures 1 and 2 the pulley 32 is shown engaged with said belt by meansof which it is driven so as to rotate the shaft 29 and operate the rotor25 of the pump. In Figure I 3 the pump is in the idle position.

.The shaft housing 22 has an upwardly projectinto the packing and intothe bearing apertured lug 40 to which are pivotally connected plates 4|engaged by a crank arm 42 on a horizontal rock shaft 43. Said rock shaftextends horizontally below the gear casing section Ila, which hasdepending lugs 43a, 43a, in which said rock shaft is rotatively mounted.Said rock shaft extends through and beyond the usual apronsurroundingthe gearing below the washing machine. There it is provided with ahandle 44 for rotating the crank arm 42 to raise or lower the housing byswinging the pump as a whole on the pivotal connection of the ears 39with the lugs Ila, as shown in Figures 2, 3 and 5. The

33a depending from the gear casing. By this means the pulley may bebrought to engagement with the belt I 3d when it'is desired to operatethe pump or may be moved from such engagement, as shown in Figure 3,where it is not engaged by said belt, and the pump will be idle. Thebottom ends of the plates 4|, in either position of the pump, engage ashoulder 40a on the pump casing at one side of their pivotal connectionwith the lug 40 and a coiled spring 44a connecting the crank arm 42 tothe casing Ila, causes said arm .to snap to either position in afamiliar manner.

A short flexible hose 45, connects the inlet 23 of the pump to a drainin the bottom of the tub in the usual manner. A like and longer piece ofhose 46 is connected to the outlet or discharge pipe 24 of the pump andits freeend may be led to any suitable drain outlet for the discharge ofthe water from the pump. a

The stuiling box being placed immediately adjacent to the rotor casing,the entrance of water into the shaft housing is absolutely prevented. Inaddition, any wear of the parts and adjustment required therefor isautomatically taken up by the pressure of the spring 36 which yieldinglyforces the end of the combination stufling gland and bearing 33 againstthe packing 35. No locking of the pump shaft may occur, since anytendency to bind the shaft for any'reason whatever would be-prevented bythe yielding of the spring.

We claim as our invention:

1. In combination with a rotary shaft and a housing therefor, meansproviding a stufling box in said housing, including a packing, acombination stufling gland and bearing for said shaft longitudinallymovable in said housing, a bearing sleeve in'said housing spacedfromsaid gland, the opposed ends of said gland and sleeve beingconstructed to present shoulders facing in opposite directions, and acoiled spring on said shaft interposed between said gland and sleeve andhaving ends engaged with said shoulders, said spring being 'coiled in adirection opposite to that in which said shaft is designed to rotate andits di-' ameter approaching the inner diameter of said housing.- I

2. -A rotary pump shaft packing including a housing, a bearing sleevefixed in said housing, a combination stufiing gland and bearing spacedfrom said fixed bearing sleeve,'packing engaged with the outer end ofsaid gland, and an expansion coiled spring interposed about said shaftbetween said-fixed bearing sleeve and said gland, said springapproaching the inner diameter of said housing but being normally freetherefrom,

said spring being coiled and engaged, respectively,

